1961010 has 56 divisors (see below), whose sum is σ = 5311980. Its totient is φ = 520992.

The previous prime is 1960993. The next prime is 1961021. The reversal of 1961010 is 101691.

It can be written as a sum of positive squares in 2 ways, for example, as 1750329 + 210681 = 1323^2 + 459^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7156 + ... + 7424.

2^1961010 is an apocalyptic number.

1961010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1961010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2655990).

1961010 is an abundant number, since it is smaller than the sum of its proper divisors (3350970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961010 is an equidigital number, since it uses as much as digits as its factorization.

1961010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 1961010 is about 1400.3606678281. The cubic root of 1961010 is about 125.1679874739.

1961010 divided by its product of nonzero digits (54) gives a triangular number (36315 = T₂₆₉).

The spelling of 1961010 in words is "one million, nine hundred sixty-one thousand, ten".